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@stuiten gint-ts gatent @Hirn ARTHUR'W. BnowNn, on nnooKLYN, NEW YORK.

r Lauer. Paten N0. 74,793, .1aed February 25, 186s.

IMPROVEMENT IN LAMP-BURNERS.

y Elfi .Stlphnlz nimmt tuinligrst rltrrs Quint :mh making aart at ttc stmt.

TO ALL WHOM IT MAY CONCERN:

Be it known that 1 ARTHUR W. BROWN-3, of Brooklyn, in the county of Kings, and State of New York, have invented a new and useful Improvement in Lamp-Burners; and I do hereby declare' the following to be l full, clear, und exact description of the same, reference being had to the accompanying drawings, which are made part of this specitication.

In this laxn p two dat wicks, or the two ends of a single flat wick, are introduced into the lower portion of the wick-tube, which at bottom is in the form ot a single rectangular aperture, but which, as it rises, merges into a cylindrical form, and is divided into two compartments by a mitre-sbaped wick-detlecting cone, and there compartments eonjointly form at top an annular orifice round n hollow cylinder, through which air is admitted from below. The double flat wick being elevated into this annular orifice, burns upon the argand principle, the flame having an internal ns well as an external supply of air. A flaring d ange or lip placed around the outside of the annular orifice serves to dellect the external draught outward, and thus spread the dame. The openings for the admission of the internal draught to the flame are guarded with wire gauze, which notftonly 'presents communication of fire to the oil in the reservoir, but eileets a steady and equal supply of airto the 'inside of the dame. f

In order that others skilled in the art to which my invention appertaius may be enabled to fully understand and use the same, I will proceed to describe its construction and operation.

Figure 1 is a vertical section of a lamp-burner, illustrating my invention, the plane of section being indicated by the line y y, hg. 2. l

Figure 2 is a similar view, the section being in the plane indicated by the line z z, g. 1.

Figure 3 is au under side view ot' the two tubular metallic shells forming the wick-tube, this view being the same as a horizontal section at z z, looking upward.

Figure 4 is a horizontal section on the line w w.

In the drawings, A represents the lower screw-threaded part of the lamp-burner, which is to be screwed into the cap or top ofthe reservoir of an ordinary lamp.` AThe part A is slotted, as shown clearly at a, iig. 1, to receive tho lower end of n tube, B, which may be fastened to said part A by bending the slit portions of said tube under the edges of the slot a, as shown. The form of the tube B will be understood by reference to iig. 1. The lower end of said tube B is oblong, and rectangular in its horizontal section. Proceeding upward, the tube B gradually ilares outuard, and terminates at its upper end in the form of a cylinder. C is a tube, placed within the upper portion ot' the tube B. The two opposite sides of the tube C, at its lower end, are made to conve' ge toward the bottom, thus giving the lower end oi' the tube a form analogous to a wedge, while the upper portion of said tube C is cylindrical, and concentric with the cylindrical portion of the tube B. The top ofthe tube C is llush, or nearly so, with the tube B, and the tube C is held in position by means ofthe vertical stays b b. The stays b b are hollow, and corresponding slots being cut in the tubes B and C, the external air is permitted to pass into C, as indicated by the arrows in lig. 2. D is a conical jacket, eonstituts ing thc outer shell ofthe burner, andlmadc fast at top to the tubo B. E is a lamp-chimney supporter, secured to the lower part A Yoi' thc burner. F l"l are shafts, bearing cach a set of toothed wheels, The toothed wheels on one shaft mesh orgear wih those on the other. A milled disk, F2, on the shaft F, enables all the wheels f to be put in motion simultaneously. The openings which conduct air through the'hollow stays b I; are covered with wire gauze, as shown at G, so as to prevent the communication of lire or flame in C to the gases or vaporized oil which mayl be diffused in the space between the jacket D and tube B, and thus avoid danger'of exploding the oil in the reservoir. In like manner, in order to prevent the communication of tiro bythe spontaneous ignition of the diffused gases to the gas or vaporizcd oil in the chambcrcd part A, andV thence to the oil in the reservoir through the sluts for the ratchet-wheels f, the chambers of said part'A are covered with gauze, as shown at G.

In operation, t-be two wicks J J are introduced into the lower llattened portion of the'tube B, and both being caught between the wheels f are elevated simultaneously vby the rotation ol' thelltte'r. The upper endl of the wicks striking the wedgchsped lower end of the tube C, are deilected so as to risc at the oppositolidel of said tube, in doingvrhirh they are spread and curved till they ultimately assume s .circular form in the annular orifice between the upper part of B and C. The wicks being projected sudiciently above tho wielrtubcs, and lighted, produce a round, hollow flume, to the internal rlaut-face of which nir is applied through C, as above explained. Suitable openingin the lomp chimney supporter, und nt thc lower end of the jacket D, afford free upward draught for the supply of air to the external surface of the flame.

The wire gauze G not only serves asn guard against explosion` but prevents sudden rushing of the air upon the llame during atmospheric ribrations or undue droughts. Each of the tubes B and C is shaped or swagcd out of a sheebmetai cylinder.

K Ii is n flange, secured to und extending round the upper part of the tube B, so us to deect the nir externelly supplied in an outrard'direction. This outward deilection of the air has a tendency to create a vocuutn within the groove i, and the consequent effort, of the tlamc to fill the same causes it. Vto spread and assume enlarged proportions. l

My object has been to produce a burner whose wick shall afford a round, bright, and highly-illuminating llame, and which shall be applieableito lamps in general.

I do not claim novelty in the double-elevating wheels irrespectively of their combination with means for guiding and 'delleeting the pair of flat wicks. I am :more that. such doubleelevating `wheels have before been used upon both sides of a. single wick, so as to compress the said trick between them.

Having thus described my inventiona what I claim as new herein, and desire to secure by Letters Patent, is-

1. The combination of' the tube I3 and tube or trickdeector C, constructed and arranged as herein described, and adapted for the employment of t'wo flat wicks, which are thereby spread and curved, and made to produce a circular tinte, substantially as set forth. A

2. In combination with the elements covered by the first clause, I further claim the shafts F F, toothed wheels f, and disk or operating-device Fi, arranged and employed substantially as und for the purpose set forth.

3. The gauze G, in combination with the slotted wick-deflector or tube C, as and for the purposes set forth.

A. W. BROWNE. Witnesses:

J. E. M. Bowsx,

Cms. D.`Sxrrn. s 

